/*********************************************************************
*                SEGGER Microcontroller GmbH & Co. KG                *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2010  SEGGER Microcontroller GmbH & Co. KG       *
*                                                                    *
*        Internet: www.segger.com    Support:  support@segger.com    *
*                                                                    *
**********************************************************************

** emWin V5.06 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws.   Knowledge of the
source code may not be used to write a similar product.  This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : WM__GetPrevSibling.c
Purpose     : Implementation of WM__GetPrevSibling
----------------------------------------------------------------------
*/

#include "WM_Intern.h"
#if GUI_WINSUPPORT    /* If 0, WM will not generate any code */

/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       WM__GetPrevSibling

  Return value: Handle of previous sibling (if any), otherwise 0
*/
WM_HWIN WM__GetPrevSibling(WM_HWIN hWin) {
  WM_HWIN hi;
  WM_Obj* pi;
  for (hi = WM__GetFirstSibling(hWin); hi; hi = pi->hNext) {
    if (hi == hWin) {
      hi = 0;                 /* There is no previous sibling. Return 0 */
      break;
    }
    pi = WM_H2P(hi);
    if (pi->hNext == hWin) {
      break;                  /* We found the previous one ! */
    }
  }
  return hi;
}

#else
  void WM__GetPrevSibling_C(void) {} /* avoid empty object files */
#endif

/*************************** End of file ****************************/
